From 81168e509f06aa205b240c1804ec2b9b5add4772 Mon Sep 17 00:00:00 2001 From: Fabrice Deyber Date: Tue, 24 May 2011 08:44:35 -0500 Subject: [PATCH] ath9k: Further fix for mesh beaconing This fix ensure the timers to be set at beacon interval boundaries. Without this change timers can be set improperly resulting in the absence of beacons. Signed-off-by: Fabrice Deyber Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/beacon.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 8b85d7c1d384..0174cdb65a83 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -652,22 +652,13 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc, { struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); - u32 tsf, delta, intval, nexttbtt; + u32 tsf, intval, nexttbtt; ath9k_reset_beacon_status(sc); - tsf = ath9k_hw_gettsf32(ah) + TU_TO_USEC(FUDGE); intval = TU_TO_USEC(conf->beacon_interval); - - if (!sc->beacon.bc_tstamp) - nexttbtt = tsf + intval; - else { - if (tsf > sc->beacon.bc_tstamp) - delta = (tsf - sc->beacon.bc_tstamp); - else - delta = (tsf + 1 + (~0U - sc->beacon.bc_tstamp)); - nexttbtt = tsf + intval - (delta % intval); - } + tsf = roundup(ath9k_hw_gettsf32(ah) + TU_TO_USEC(FUDGE), intval); + nexttbtt = tsf + intval; ath_dbg(common, ATH_DBG_BEACON, "IBSS nexttbtt %u intval %u (%u)\n", -- 2.20.1